Feeding mechanism for carding engines



Dec. 24, 1951 I SCOWCROFF 2,817,120

FEEDING MECHANISM FOR CARDING ENGINES Filed Aug. 10, 1954,

FIG. 2

Inventof W" CoucROFT United States Patent FEEDING MECHANISM FOR CARDING ENGINES Edwin Scowcroft, Stoekport, England Application August 10, 1954, Serial No. 448,900

Claims priority, application Great Britain September 1, 1953 2 Claims. c1. 19-105 This invention relates to improvements in carding engines and more particularly to feed rollers for such machines.

It has been proposed to feed the lap to a carding engine by means of a longitudinally fluted metal roller, the lap passing between the roller and a feed plate on its way from the lap roller to the taker-in roller of the carding engine; with such a feed, however, the lap fed to the taker in roller may be unwoven and thick or thin portions in the lap are not eliminated.

In the feeding of the lap to the taker-in roller any thick portions in the lap will cause the feed roller to lift thereby releasing its pressure on the remainder of the lap passing between the feed roller and feed plate with consequent snatching of the fibres by the taker-in roller which is covered with card clothing, thereby pre venting the further parallelising of these fibres as they are fed to the taker-in roller.

The object of the present invention is to supply an even lap to the taker-in roller of the carding engine and it has been found that a feed roller having a rubber, synthetic rubber or plastic resilient covering allows the feed roller to maintain a grip on the lap and prevents the passage of thick portions in the lap to the taker-in roller and that the lap passing to the carding engine is greatly improved in evenness.

According to the invention the feed roller is formed with a resilient sleeve to give a resilience to the roller and thereby evening the lap fed to the taker-in roller.

The invention will be described with reference to the accompanying drawings:

Fig. 1 is a longitudinal section of a feed plate and roller for feeding the lap to the taker-in roller of a carding engine.

Fig. 2 is a front elevation of the feed roller showing the resilient sleeve thereon.

The lap is fed to the taker-in roller A of the carding engine between a feed or dish plate B and a feed roller C in known manner. The taker-in roller is covered with card clothing a.

The feed roller C is covered with a sleeve c of rubher, synthetic rubber, polyvinyl chloride, plastic or other resilient material unaffected by moisture, oil or other liquid. The sleeve may be moulded onto the roller or applied in any other known manner.

The lap from the lap roller passes between a feed plate B and the feed roller C being fed forward by this latter, the resilient surface c of which prevents the passage of any thick portions in the lap and evens the feed to the taker-in roller A of the carding engine by the exertion of a slipping action on the fibres which removes the thick portions to feed forward a regular and even lap while maintaining a grip on the remaining fibres and thereby allowing them to be parallelised as they are drawn from between the feed roller C and plate B by the taker-in roller A.

The feed roller may be Weighted in the usual manner.

It has been found that with the present invention a much more even lap is fed to the carding engine with a consequent improvement in the card sliver produced by the carding engine.

I claim:

1. In a feed mechanism for a carding device, in combination, a feed roller having an outer peripheral portion made of a resilient material and being mounted for rotation about an axis of rotation; and feed plate means having a feed surface including a curved portion substantially complementary to part of said outer peripheral portion of said feed roller, said feed plate means being so arranged relative to said axis of rotation that said curved portion of said feed surface is near to but spaced from said peripheral portion of said feed roller so that said portions define a space between themselves, whereby a lap or the like fed into said space during rotation of said feed roller about said axis will be frictionally engaged by said outer peripheral portion thereof and be moved through said space, any thick portion of the lap or the like passing through said space causing deformation of but that part of said outer peripheral portion of said feed roller which such thick portion of the lap or the like engages, so that the remaining portion of the lap or the like passing through said space remains in frictional engagement with said outer peripheral portion of said roller, thereby enabling said feed roller to move a lap or the like through said space irrespective of irregularities in the thickness of such lap or the like.

2. The combination defined in claim 1 wherein said material is impervious to liquids.

References Cited in the file of this patent UNITED STATES PATENTS 2,128,130 Farrar Aug. 23, 1938 2,455,412 'Fonville et a1. Dec. 7, 1948 2,580,582 Nix Jan. 1, 1952 

